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Can't be electrocuted?!

03-16-2008, 08:30 PM

Saw Modern Marvels and lineman are starting to use helicopters to drop them directly on power lines to work so they never touch ground. They straddle both lines and shimmy to where they need to go. Why doesn't the guy get electrocuted?

Saw Modern Marvels and lineman are starting to use helicopters to drop them directly on power lines to work so they never touch ground. They straddle both lines and shimmy to where they need to go. Why doesn't the guy get electrocuted?

Comment

On some power distribution towers there is more than one conductor per phase. They are connected in parallel at several points. If that's the case you can touch more than one wire as long as both are at the same potential. In the case of snakes and in many cases large birds flying with the snake getting zapped it's where either the bird & snake or just the snake or just the bird making contact with two or more wires at different potential. The highest (above ground) wires normally grounding conductors.

When the snakes simultaneously touch live and grounded conductors, they create faults, short circuits, and electrical damages. This results in frequent losses of power to parts of Guam and even island-wide blackouts.

you do not have to touch ground or earth, to get a flow of voltage through you, all you need is to become a conductor between two imbalanced flows of electrons, take the two hots on single phase power, or two or more phases on three phase, or even if it is grounded and there are multiple flows on the ground, (called stray voltage). In lighting the air can even be one of the conductors.

Push sticks/blocks Save Fingers
~~~~~~~~~~~~~~~~~~~
"The true measure of a man is how he treats someone who can do him absolutely no good."
attributed to Samuel Johnson
~~~~~~~~~~~~~~~~~~~
PUBLIC NOTICE: Due to recent budget cuts, the rising cost of electricity, gas, and oil...plus the current state of the economy............the light at the end of the tunnel, has been turned off.

Push sticks/blocks Save Fingers
~~~~~~~~~~~~~~~~~~~
"The true measure of a man is how he treats someone who can do him absolutely no good."
attributed to Samuel Johnson
~~~~~~~~~~~~~~~~~~~
PUBLIC NOTICE: Due to recent budget cuts, the rising cost of electricity, gas, and oil...plus the current state of the economy............the light at the end of the tunnel, has been turned off.

Comment

it would only let me load 5 pic a page,
I found these on the net a few years ago, and thought it was interesting at least.

Attached Files

Push sticks/blocks Save Fingers
~~~~~~~~~~~~~~~~~~~
"The true measure of a man is how he treats someone who can do him absolutely no good."
attributed to Samuel Johnson
~~~~~~~~~~~~~~~~~~~
PUBLIC NOTICE: Due to recent budget cuts, the rising cost of electricity, gas, and oil...plus the current state of the economy............the light at the end of the tunnel, has been turned off.

Comment

Around here rodents and crows have done lots of damage to the electrical system. Thanks to the installation of more high Voltage fuses normally the damages are limited and can be fixed quickly. Before then it was common to find burned up transformers where there was an animal or large bird making a connection from the transformer can to one of the high Voltage primary side conductors.